G. J. Gruber

Performance demonstration of an ultrasonic nozzle inspection system: Part 1 -- Transducer development and flaw detection

G. J. Gruber, S. R. Burger, L. E. Mullins, 1994 .

Fabrication of performance demonstration initiative specimens with controlled flaws

R. L. Edwards, G. J. Gruber, P. D. Watson, 1995 .

Fabrication of specimens with controlled flaws

R. L. Edwards, G. J. Gruber, P. D. Watson, 1995 .

Defect identification and sizing by the ultrasonic satellite-pulse technique

G. J. Gruber, 1980 .